The last thing I want to do is just let my helmet do its job. I'd rather do almost anything else to prevent that if I can, because there's a point when I realized that it simply keeps me alive. It doesn't save me from everything. A broken bone heals, road rash heals, CTE does not heal. If my options are to go head first into a car or lay down and take a slide, I'll take the slide every time.
I treat my helmet as just another line of defense, one of many that includes e.g. body gear, situational awareness, keeping up on riding ability, and things like that.
In case it's not clear to anyone reading, yes, I wear a helmet and gear when I ride. I'm not arguing against wearing helmets, only the incorrect assumptions made about them.